Finding the Fourth Proportional to 89,648.76, 123,731.88 and 51,923

Step by Step Solution

1. Step 1: Write the proportion equation
   89,648.76 : 123,731.88 = 51,923 : x
2. Step 2: Convert to fraction form
   89,648.76/123,731.88 = 51,923/x
3. Step 3: Cross multiply
   89,648.76x = 123,731.88 × 51,923
4. Step 4: Simplify right side
   89,648.76x = 6,424,530,405.24
5. Step 5: Solve for x
   x = 6,424,530,405.24/89,648.76
6. Step 6: Final answer
   x = 71,663.35